Maybe not the label, but I've had many a juice bottle arrive with the strength or ratios written in pen. Proper packaging is not too much to ask for. I would hope this would be high on ecta or whatever's priority list.
Labelling will certainly be part of the standards in for our industry. There are very few producers in Canada so it shouldn't take long at all. Compliance is always based on laws though - so anything that follows legislation is acceptable and the rest is dependant on how each business wishes to operate.